At this point, the plane started descending. As the plane turned, it’s altitude dropped from 3060 feet to 1650 feet above ground level. Calculate the angle of descent if the plane traveled 0.5 miles (c). (Note: the difference in altitude is 1390 feet) (4 points)

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling